Eyeglasses.



PATENTED JULY 3, 1906.

E. 13.. MEYROWITZ.

EYEGLASSES.

APPLICATION FILED AUG. @1904.

, Emu. B. Msvaownz 3515 3 10 WWI/WW UNITED STATES PATENT OFFICE.

EMIL B. MEYROWITZ. OF NEW YORK, N. Y., ASSIGNOR TO THE MEYROVVITZ MANUFACTURING OF NEWV JERSEY.

(JOlVIPANY, A CORPORATION EYEGLASSES- Specification of Letters Patent.

Patented July 3, 1906.

To a whom it may concern:

Be it known that I, EMIL B. Mnvnowrrz, a citizen of the United States, residing at the city of New York, in the borough of Manhattan and State of New York, have invented certain new and useful Improvements in Eyeglasses, of which the following is a full, clear, and exact description.

In that style of eyeglasses in which the ends of the spring and the arms which carry the nose-guards or clips are secured to the posts by screws which enter threaded recesses in said posts much difliculty and annoyance have been experienced byreason of the fact that the screws become loose after the glasses have been in use for some time or when there is an opportunity for lateral movement of either the spring or clip-carrying arm. Various expedients have been resorted to for preventing the turning and consequent loosening of these screws, but none which has come tomy knowledge has proved satisfactory, for the reason that it either fails to prevent the loosenin of the screw or, if it does do so, it is made 'fficult or impossible to afterward remove the screw when it is desired to disconnect the parts.

My invention is believed to accomplish the result named in a perfectly satisfactory manner. The same consists in forming the head of each post with a pair of transversely-extending parallel straps forming loops for the reception of one end of the spring and of one end of the clip-carrying arm and a retaining-screw extending through these parts into a threaded recess in the post, the head of the screw being located between said straps and provided with milled or otherwise rou hened surfaces and the straps being adapte to be forced into contact with the head of the screw for preventing the turning of the latter.

In the drawings forming part of the specification, Figure 1 is an elevation of a pair of eyeglasses having my improvements applied thereto. Fig. 2 is a detail sectional view through one of the posts. Fig. 3 is a sectional elevation showing the clamping-straps in engagement with the head of one of the retaining-screws, and Fig. 4 is a detail perspective view of one of the posts.

Like reference-numerals indicate like parts in the different views.

The lenses 1, the spring 2, the clips or noseguards 3, and the clip-carrying arms 4 may all be of any suitable or preferred construction. Each-of the posts 5 has an internallythreadcd axial recess 6 therein for receiving the retaining-screw 7, which holds one end of the spring 2 and one of the arms 4 in place. On opposite sides of the threaded recess 6 the post 5 is provided with a pair of straps or flanges 8, which extend transversel of the spring 2 and the arm 4 and are provided with passages 9 for the reception of said spring and arm. The straps or flanges 8 with the passages 9 therethrough form loops into which one end of the spring 2 and one end of the arm 4 are inserted, the said spring and the said arm overlapping each other and being held in place by the screw 7. Said loops tend to prevent any lateral movement of the spring 2 and the arm 4, and thereby serve to reduce the tendency of said parts to loosen the screw 7. Moreover, said loops acting in conjunction with the screw 7 constitute a more effective means for retaining the parts of the glasses in place by increasing the rigidity of the connection. The head of the screw 7 is milled or otherwise roughened on its sides, as shown, and the same is prevented from turning by forcing the side faces 10 of the straps 8 into close frictional contact therewith. The screw 7 is thus locked against displacement; but if it be desired to remove the same for the purpose of separating the spring 2 or the clips 3 from the post it may be readily done by the use of an ordinary screw-driver. The power exerted by the screw-driver is sufficient to overcome the frictional contact between the straps 8 and the roughened surface of the screw, while accidental turning of the screws is effectually prevented. Durin this turning movement it is possible that s ight wear of the screw 7 or the straps 8 may take place; but this wear may be readily compensated for when the parts are returned to their normal positions by merely tightening the engagement of said straps with said screw.

Having described my invention, I claim- 1. An eyeglass-post having a threaded recess and a pair of loops having alined passages and disposed one on each side of said recess, and the side faces of said loops opposite each other occupying positions adjacent to said recess, and a screw seated in said recess and having a head with milled or roughened sides whereby it is capable of rotating,

10 with said loops.

but with a frictional resistance against said side faces. 7

2. The combination with an eyeglass-post having a threaded recess therein, and aline 5 loops disposed upon the opposite sides of 3. The combination with an eyeglass-post having a threaded recess therein, and transversely-extending loops on opposite sides of said recess, of a spring and a clip-arm extend ing through said loops, and a screw adapted to be inserted into said recess for holding said spring and arm in place, the said screw hav ing a milled head adapted to be friotionally engaged by bending said loops inwardly into contact therewith.

In witness whereof I subscribe my signature in the presence of two witnesses.

EMIL B. MEYROWITZ. Witnesses:

HANSON G. OoXE. JOHN BAKER 

